Differential pre-emphasis driver

Details Differential pre-emphasis driver Differential pre-emphasis driver

2011-05-10

2011-05-10

Barnie, Rexford N (Department: 2819)

Electronic digital logic circuitry

Signal sensitivity or transmission integrity

Output switching noise reduction

C326S115000, C326S127000, C326S086000, C327S108000

Reexamination Certificate

active

07940075

ABSTRACT:
Disclosed is a differential pre-emphasis driver. The driver includes a first current source supplying a first current, a second current source supplying a second current greater than the first current, a first select circuit for selectively connecting the first current source to a first output terminal or a second output terminal, and a second select circuit for selectively connecting the second current source to the first output terminal or the second output terminal. The first and second select circuits pre-emphasize a transmission signal by selectively combining the first output terminal, the second output terminal, the first current source and the second current source.

REFERENCES:
patent: 6288581 (2001-09-01), Wong
patent: 6956407 (2005-10-01), Baig et al.
patent: 2008/0042725 (2008-02-01), Aoki
patent: 2008/0136465 (2008-06-01), Takagi
patent: 2006-311446 (2006-11-01), None

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